Mac's unloving dad Luther is in jail on a murder charge, and Mac and Charlie seek to prove his innocence with disastrous consequences. Back at Paddy's, Bill Ponderosa has arrived and announces his plan to drink himself to death, so Frank, Dennis and Dee seek to either stop him from doing that or profit if he goes through with it.
The gang appears as contestants on Family Fight,It's Always Sunny in Philadelphia Seasons 1-9 DVD a fictional game show. Once they get there, Frank wants to spout right-wing political positions, Mac keeps mixing up which game show he's participating in, Dee aims for lowbrow humor, Dennis demands classiness but gets unnerved by the "wrong answer" buzzer, and Charlie's odd knack for getting fringe answers correct has a rational explanation—all while the host (Keegan-Michael Key) comes to absolutely hate each of them.